[Autofill] Add upstreaming UKM

components/autofill/core/browser/autofill_experiments.h

 // Copyright 2015 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_EXPERIMENTS_H_
 #define COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_EXPERIMENTS_H_
 
 #include <string>
 
 #include "base/strings/string16.h"
@@ skipping 10 matching lines @@
 }
 
 namespace autofill {
 
 struct Suggestion;
 
 extern const base::Feature kAutofillCreditCardAssist;
 extern const base::Feature kAutofillScanCardholderName;
 extern const base::Feature kAutofillCreditCardPopupLayout;
 extern const base::Feature kAutofillCreditCardLastUsedDateDisplay;
+extern const base::Feature kAutofillUkmLogging;
 extern const char kCreditCardSigninPromoImpressionLimitParamKey[];
 extern const char kAutofillCreditCardPopupSettingsSuggestionValueKey[];
 extern const char kAutofillCreditCardLastUsedDateShowExpirationDateKey[];
 
 // Returns true if autofill should be enabled. See also
 // IsInAutofillSuggestionsDisabledExperiment below.
 bool IsAutofillEnabled(const PrefService* pref_service);
 
 // Returns true if autofill suggestions are disabled via experiment. The
 // disabled experiment isn't the same as disabling autofill completely since we
@@ skipping 52 matching lines @@
 
 // Modifies the suggestion value and label if the new credit card autofill popup
 // experiment is enabled to tweak the display of the value and label.
 void ModifyAutofillCreditCardSuggestion(struct Suggestion* suggestion);
 
 // Returns the margin for the icon, label and between icon and label. Returns 0
 // if the margin isn't configured in an experiment to tweak autofill popup
 // layout.
 unsigned int GetPopupMargin();
 
+// Returns whether the feature to log UKMs is enabled.
+bool IsLoggingUkmEnabled();

[Mathieu, 2017/03/09 20:13:26]

*IsUkmLoggingEnabled to be consistent with the name of the feature.

[sebsg, 2017/03/09 20:52:16]

Done.

+
 }  // namespace autofill
 
 #endif  // COMPONENTS_AUTOFILL_CORE_BROWSER_AUTOFILL_EXPERIMENTS_H_